Legrandite and Nuummite Physical Properties

Legrandite

Nuummite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.98-4.043.18-3.37

1 7.18

1.5 Fracture

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

Conchoidal

1.6 Cleavage

Imperfect, poor one {100}

Perfect on 210

1.7 Mohs Hardness

4.5-55.5-6

2 10

1.8 Chemical Composition

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Not Available

Legrandite and Nuummite Chemical Formula

While comparing Legrandite and Nuummite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Legrandite and Nuummite chemical formula.

Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Legrandite and Nuummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.